Fix paths of files that are supposed to be in the mc data dir (fixes #40)

src/main/java/com/replaymod/core/ReplayMod.java

@@ -85,7 +85,8 @@ public class ReplayMod {
     }
 
     public File getReplayFolder() throws IOException {
-        File folder = new File(getSettingsRegistry().get(Setting.RECORDING_PATH));
+        String path = getSettingsRegistry().get(Setting.RECORDING_PATH);
+        File folder = new File(path.startsWith("./") ? getMinecraft().mcDataDir : null, path);
         FileUtils.forceMkdir(folder);
         return folder;
     }

src/main/java/com/replaymod/online/ReplayModOnline.java

@@ -8,10 +8,10 @@ import com.replaymod.online.gui.GuiSaveModifiedReplay;
 import com.replaymod.online.handler.GuiHandler;
 import com.replaymod.replay.ReplayModReplay;
 import com.replaymod.replay.events.ReplayCloseEvent;
-import de.johni0702.minecraft.gui.container.GuiScreen;
 import com.replaymod.replaystudio.replay.ReplayFile;
 import com.replaymod.replaystudio.replay.ZipReplayFile;
 import com.replaymod.replaystudio.studio.ReplayStudio;
+import de.johni0702.minecraft.gui.container.GuiScreen;
 import net.minecraftforge.common.config.Configuration;
 import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Mod;
@@ -24,6 +24,8 @@ import org.apache.logging.log4j.Logger;
 import java.io.File;
 import java.io.IOException;
 
+import static net.minecraft.client.Minecraft.getMinecraft;
+
 @Mod(modid = ReplayModOnline.MOD_ID, useMetadata = true)
 public class ReplayModOnline {
     public static final String MOD_ID = "replaymod-online";
@@ -101,7 +103,8 @@ public class ReplayModOnline {
     }
 
     public File getDownloadsFolder() {
-        return new File(core.getSettingsRegistry().get(Setting.DOWNLOAD_PATH));
+        String path = core.getSettingsRegistry().get(Setting.DOWNLOAD_PATH);
+        return new File(path.startsWith("./") ? getMinecraft().mcDataDir : null, path);
     }
 
     public File getDownloadedFile(int id) {

src/main/java/com/replaymod/render/ReplayModRender.java

@@ -1,11 +1,17 @@
 package com.replaymod.render;
 
 import com.replaymod.core.ReplayMod;
+import net.minecraft.crash.CrashReport;
+import net.minecraft.util.ReportedException;
 import net.minecraftforge.common.config.Configuration;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
+import org.apache.commons.io.FileUtils;
 import org.apache.logging.log4j.Logger;
 
+import java.io.File;
+import java.io.IOException;
+
 @Mod(modid = ReplayModRender.MOD_ID, useMetadata = true)
 public class ReplayModRender {
     public static final String MOD_ID = "replaymod-render";
@@ -32,6 +38,17 @@ public class ReplayModRender {
         core.getSettingsRegistry().register(Setting.class);
     }
 
+    public File getVideoFolder() {
+        String path = core.getSettingsRegistry().get(Setting.RENDER_PATH);
+        File folder = new File(path.startsWith("./") ? core.getMinecraft().mcDataDir : null, path);
+        try {
+            FileUtils.forceMkdir(folder);
+        } catch (IOException e) {
+            throw new ReportedException(CrashReport.makeCrashReport(e, "Cannot create video folder."));
+        }
+        return folder;
+    }
+
     public Configuration getConfiguration() {
         return configuration;
     }

src/main/java/com/replaymod/render/VideoWriter.java

@@ -49,7 +49,8 @@ public class VideoWriter implements FrameConsumer<RGBFrame> {
         System.out.println("Starting " + settings.getExportCommand() + " with args: " + commandArgs);
         String[] cmdline = new CommandLine(executable).addArguments(commandArgs).toStrings();
         process = new ProcessBuilder(cmdline).directory(outputFolder).start();
-        OutputStream exportLogOut = new TeeOutputStream(new FileOutputStream("export.log"), ffmpegLog);
+        File exportLogFile = new File(Minecraft.getMinecraft().mcDataDir, "export.log");
+        OutputStream exportLogOut = new TeeOutputStream(new FileOutputStream(exportLogFile), ffmpegLog);
         new StreamPipe(process.getInputStream(), exportLogOut).start();
         new StreamPipe(process.getErrorStream(), exportLogOut).start();
         outputStream = process.getOutputStream();

src/main/java/com/replaymod/render/gui/GuiRenderSettings.java

@@ -7,7 +7,6 @@ import com.google.gson.GsonBuilder;
 import com.google.gson.InstanceCreator;
 import com.replaymod.render.RenderSettings;
 import com.replaymod.render.ReplayModRender;
-import com.replaymod.render.Setting;
 import com.replaymod.render.rendering.VideoRenderer;
 import com.replaymod.replay.ReplayHandler;
 import com.replaymod.replaystudio.pathing.path.Timeline;
@@ -410,7 +409,7 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
 
     private File generateOutputFile(RenderSettings.EncodingPreset encodingPreset) {
         String fileName = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss").format(new Date());
-        File folder = new File(ReplayModRender.instance.getCore().getSettingsRegistry().get(Setting.RENDER_PATH));
+        File folder = ReplayModRender.instance.getVideoFolder();
         return new File(folder, fileName + "." + encodingPreset.getFileExtension());
     }